does anybody have any lowband crystals for a Motorola P50 2 channel portable..?
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Motorola P50 lowband crystals ?
- Thread starter KC0CCB
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it's a 2 channel portable on 39.1000 (SD Old State Government) for channel 1... looking for other crystals to fill up channel 2 if i can..
model number : H41GNU1120BN
model number : H41GNU1120BN
I think Bomar Crystals can provide you with what you seek. Not sure if JAN Crystals is still in business.
well if i can go down to like 33.400 or something like 42.96 or 42.980 or maybe 49.830 could i with that rig ??
If it's on 39 MHz now it won't go as low as 33 MHz or as high as 49. It might do slightly above 42 MHz but I wouldn't count on it working on something as high as 42.9x MHz; that's nearly 1 MHz away from the top end of it's coverage range.
Older Motorola low-band radios had to be ordered for the specific range of frequencies you needed, and were typically:
29.7-36.0 MHz
36.0-42.0 MHz
42.0-50.0 MHz
The mid-split radios are mostly useless for hobby use. In many cases, low-split Motorola radios can be made to go into the 10-meter FM ham band, while high-split models can often be made to go into the 6-meter ham band, but mid-split is pretty much an orphan.
petnrdx
Member
A little additional info on those and for most low band handhelds. Even some of the older mobiles. While they were manufactured for three or four "splits" each radio had to be tuned for a specific range. Usually a 1 mhz range within its designed split. So if your radio is on 39.1 you would need re-tuning to go much more than 40.1 or 38.1 mhz. I have worked on a lot of old low band radios, and you would probably be better off buying a P200 LB. At least they are programmable. Buying even a single set of crystals is
more than a used P200 LB might run. I have not seen a LB radio (maybe the HT-750) that tuned its whole "split" without RX degradation. Typically you can align the RX to be "useful" but give up some sensitivity for up to about 3 mhz. After that they
get really deaf. I don't have the P50 manual anymore, but I *think* the maximum channel spacing with no degradation is 1 mhz.
more than a used P200 LB might run. I have not seen a LB radio (maybe the HT-750) that tuned its whole "split" without RX degradation. Typically you can align the RX to be "useful" but give up some sensitivity for up to about 3 mhz. After that they
get really deaf. I don't have the P50 manual anymore, but I *think* the maximum channel spacing with no degradation is 1 mhz.
shoot maybe i'll just stick with 39.1000 in there and save it for a WROL or a SHTF situation i guess
i was kinda looking at the TK-190 i think that portable might be better (if i can find one....)
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